Gas-cock lock



Jan. 12 1926. 1,569,180

B. HAGBERG GAS -cocx LOCK Filed sept. 1925 l'lug Patented Jan. 12, 1926.

UNITED STATES PATEN BERNARD HAGBERG, OF MUSKEGON, MICHIGAN.

Gascocn Loox. Y

Application filed September 3,1925.

To all fw/lom t may concern:

Be it known that I, BnnNAiiD Hi-ienno, a citizen ot the United States,residing at Muskegon, in the county ot Muskegon and State of Michigan,have invented certain f tion of the cock by children and by accidentalcontact.

An important object ot the invention is to provide a lock for gas cockscontrolled from the handle of' the cock and which is only releasable byboth rotating and longitudinally shifting a portion ot' the handle.

A further object of the invention is to provide in a construction ofthis character a single means resisting both the operations ot rotatingand longitudinally shifting said portion ot the handle.

A still further object of the invention is to provide a device of thischaracter so constructed that it provides an effective dust hood for thecock, preventing collection of dirt and dust about the stem ot the cock.

These and other objects l attain by the construction shown in theaccompanying drawings, wherein for the purpose of illustration is showna preferred embodiment ot my invention and wherein Figure 1 is aperspective View of a gas cock constructed in accordance with myinvention;

Figure 2 is a vertical sectional view' therethrough;

Figure 3 is a transverse sectional view taken through the angularportion of the stem of the cock;

Figure l is a perspective view of the valve element and its stemremoved;

Figure 5 is a perspective ot' the upper end of the stem housing;

Figure 6 is a perspective view partially broken away of the upper end ofthe stem and the angular portion thereof forming a housing for thelocking plunger.

Referring now more particularly to the drawings, the numeral 10generally indicates the body of a gas cock, 11 the valve element thereofand 12 the stem for rotating Serial No. 54,362.

this valve element. In accordance with my invention, l provide the cockbody with a tubular extension 13 surrounding the'stem 12 and having inits upper enda notch 14 through which an angular projection 15 oi thestem isdirected. Thenotch is ot greater circumferential width than thesize ol this angular projection so that the angular projection may berotated to move the valve clement 11. from fully opened to fully closedpositions.

rl`his angular projection has a bore 16 within which is slidahly mounteda plunger 17'having a centrally located tit 18 torengagement in anopening 18EL nformed in the inner tace of the wall ott the tubularextension 13 when the angular projection 15 is so positioned that thevalve is fully closed. The wall ot the angular projection at the end o'the bore is formed with a slot, pro viding communicating longitudinally.and circumterentially extending branches 19 and 20, the longitudinallyextending branch rbcing disposed at one end of the circuinterenw tiallyextending branch 20. The outer end ot the projection 15 has a reducedbore 21 communicating with the bore 16 and through this `reduced boreprojects a stem 22. To the outer end of this stem is secured a handleelement 28 which is held against rotation and longitudinal movement withrelation to the stem. Between the inner end of the bore 16 of theangular portion 15 and the opposed end of the plunger 17, a compressionspring 2st is disposed in surrounding relation to the stem 22. rlhisspring at its ends has longitudinally projecting portions 25 and 26engaging the end walls of the bore and plunger so .that this springserves to constantlyvurge the plunger, stem and handle in a direction toplace a pin 27, mounted in the plunger, in the circumferentially extending portion 2O of the slot. This pin may, however, only enter thiscircumferentially extending portion when the tit 18 is in alignment withthe socketv 18at as otherwise the plunger cannot project sufficiently.

It will be seen that with the tit in engagement with the socket, it isimpossible to place the valve in open position until the handle portion23 is first rotated to move the pin 27 into alignment with thelongitudinally extending slot 19 and then shifted longitudinally to movethe pin into this slot. It will also be seen that the spring 24 resistsboth of these movements and when the tit isreturned to alignment Withthesocket, Will automatically cause both engagement of the tit in thesocket and the engagementof the pin 27 in the slotQO. In order toprevent collectioniofdi'rt, dust andi'the'lilre about the stem 12 andWithin the -tubul-ar extension 13, the angular extension 15 of the stemis provided -Withfa 'disk-likehe'ad portion 28 slidably abutting theupper end of thetubular extension 13. Thisheadlpor- '.tion, I ifdesired, may haver Vshort flanges 29 projectingQdownwardly therefrom atopposite sides o'fithe angularportion 15 to' cover' the ends of thenotch let asthey arejexposed by? swinging i movement of the -YanguvThestructure ofthe device is obviously capablefof a certainfrange ofch'ang'erand modification Without departing "from the spirit of theinvention and I accordingly do y'not Ylimit myself fto l'the specicstructure `1hereinbefore` set'forth except as hereinafter claimed.

Ilclaim :e l l. In conf'ihmation with 'a Ygas cock includ- -"ing the''usual -valve` element S and stem therel'for' andcasing, .an angularextensionfupon thei stem having a bore, ahousingfor'the -stem carried byYthelood'y of thevalvefand having portions (opposing the I angularportion of the 'stem throughout the movement Aof vthe stem,'aplu`ngermountedin the bore ofthe angular portion ofthe stem, a handle elementifor! shifting the plunger tof parti ally rotate or to "longitudinallymove the same,

a tit on thefplungerfanda socket inthe opposed portiont'of the stemhousing, single means constantly urging the tit on the plun- ,y ger in adirection to engage the stem hous- V'ing an-'dto rotate Lthe plunger andmeans ,preventing rotation of the plunger until the tit is engaged inthe socket of the stem Ahousing land then ifpermitting limited rotationthereof.

2. In combinationwvitha=gas cockincludiingth'eusu'al'valve element andstem therefor fandcasing, an angular extension upon v`the plunger in adirection :to Lengage vthe stem'housing and to rotate the-=plunger,

means preventing 'rotation 4of :the plunger until thel tit is 'engagedin the `socket` ofthe lstem housing rand then permitting limitedrotation thereof said means preventing longitudinal movementoftheiplungerlto Withdraw `the -tit from ithe socket 'until the :plungerhas been 'partially rotated.

1I`n vtestimony @whereof 5 I hereunto v'afiix my signature.

BERNARD HAGBERG.

